Alibaba made its debut Friday on the New York Stock Exchange as the largest initial public offering in U.S history.

Opening at $92.70 a share–36% higher than its IPO price of $68–Alibaba’s market capitalization Friday morning reached $228.5 billion–higher than Amazon, Facebook, eBay, and General Electric, but still lagging behind Google, Apple, and Microsoft. (Update: The stock closed at $93.89, up 38%.)

The debut got off to a rocky start, with trading delayed by more than two hours due to an imbalance in buy and sell orders. In the first 20 minutes of its opening, more than 100 million shares were traded.

With Alibaba public, founder Jack Ma–who owns 7.8% of the company–now stands as the richest man in China, with an estimated net worth of $21.9 billion, according to Bloomberg.